Display screen or portion thereof with icon for hot water generating equipment



FIG. 1 is a front view of the first embodiment of a display screen or portion thereof with icon for hot water generating equipment showing our new design; and,

FIG. 2 is a front view of a second embodiment thereof.

The outer perimeter broken lines in the figures show a display screen or portion thereof and form no part of the claimed design. The broken line showing of text forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon for hot water generating equipment, as shown and described. 